Electrical propagation in the renal pelvis, ureter and bladder

Acta Physiologica
F T Hammad

Abstract

Under normal conditions, following the passage of urine from the collecting duct, the urine is stored briefly in the renal pelvis before being transported through the ureter to the bladder where the urine is stored for a longer time (hours) before being voided through the urethra. The transport of urine from the renal pelvis to the bladder occurs spontaneously due to contractions of the muscles in the wall of the pelvis and ureter. Spontaneous contractions also occur in the detrusor muscle and are responsible for maintaining the bladder shape during the filling phase. These muscle contractions occur as result of electrical impulses, which are generated and propagated through different parts of the urinary tract. The renal pelvis and the ureter differ from the bladder in relation to the origin, characteristics and propagation of these electrical impulses. In the ureter, the electrical impulses originate mainly at the proximal region of the renal pelvis and are transmitted antegradely down the length of the ureter. The electrical impulses in the bladder, on the other hand, originate at any location in the bladder wall and can be transmitted in different directions with the axial direction being the prominent one. In this manuscri...Continue Reading

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Citations

Dec 9, 2014·Acta Physiologica·W J Lammers, G J van der Vusse
Apr 9, 2020·International Journal of Urology : Official Journal of the Japanese Urological Association·Mohammad Ayodhia SoebadiDirk De Ridder
Aug 11, 2017·Acta Physiologica·P B Persson, A Bondke Persson

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